When the pressure on magma chamber inside earth increase and push magma to the surface.

When it formes by eruption lava and ash.

when rock underground suddenly breaks along a fault.

lava flows then cools and hardens to form rock.

an eruption destroys the side of a mountain.

magma forms giant underground chambers.

saltwater touches lava and changes into steam.

True

False

Global cooling

earthquakes

release of poisonous gases

all of the above

Dozens of miles

Hundreds of miles

Thousands of miles

All of the above